baber/WOPTO huggingface dataset:
Patent JP-H01138766-A (JP)
Title: Driving circuit for led
Inventor: OKUYAMA KEIICHI
IPC: H04B10/50
Filed: 1987-11-25
Abstract: PURPOSE:To enable the high speed modulation of an LED by a method wherein a third transistor for building a stored-charge discharging circuit for LED extinction is added to a conventional LED driving circuit incorporating a first and second differential transistors. CONSTITUTION:A current into an LED 4 is interrupted for the LED 4 to recede into extinction when a second N-P-N transistor 2 is turned off and a first N-P-N transistor 3 is turned on, when a collector current flows and a voltage equivalent to the potential attributable to a collector load resistor 8 is applied to the base of a third P-N-P transistor 7 for the turning on of the third P-N-P transistor 7. The charge in the LED 4 accumulated owing to internal capacity during the LED illumination is then discharged through the third P-N-P transistor. This design ensures a rapid extinction for the LED 4.
Patent JP-H08162560-A (JP)
Title: Electronic part
Inventor: SAKAI TADAHIKO
IPC: H05K3/34
Filed: 1994-12-01
Abstract: PURPOSE: To provide an electronic part hard to cause a defective bond even if a substrate is warped. CONSTITUTION: An electronic part 1 comprises: a substrate 2; a mold body 3 provided on an upper surface of the substrate 2 and integral with a semiconductor chip inside; a plurality of lands 10, 12, 14, 21, 22 provided on a lower surface of the substrate 2 and connecting with the semiconductor chip; and a plurality of solder bumps 40, 41, 42, 43, 44 fixed to the lands 10, 12, 14, 21, 22. The lands 10, 12, 14, 21, 22 are formed small from a center of the substrate 2 towards outside.
Patent JP-H0558923-A (JP)
Title: Method for producing monoalkenyl derivative
Inventor: SANADA NOBUAKI
IPC: B01J27/135
Filed: 1991-08-30
Abstract: PURPOSE:To obtain a monoalkenyl derivative useful as a raw material for a wetting agent and a detergent in the field of modifying an elastic and thermoplastic synthetic resin under a relatively mild reaction condition by using a simple catalyst in high yield, selectively, industrially and advantageously. CONSTITUTION:In reacting a conjugated diolefin shown by formula I (R is H or alkyl) with an aromatic hydrocarbon shown by the formula Ar-H (Ar is aromatic group), a catalyst obtained from titanium tetrachloride and an alcohol is used to selectively give the objective compound shown by formula II. The amount (molecular ratio) of the alcohol added based on the titanium tetrachloride is preferably 0.1-1.5, especially 0.8-1.2. The addition of the alcohol is necessary for improving yield and the yield is improved more than 4 times at its maximum in comparison with the absence of the alcohol. A titanium alkoxide shown by the formula Ti(OR)nCl4-n ((n) is 1 or 2) is formed from the titanium tetrachloride and the alcohol.
Patent JP-H02146387-A (JP)
Title: Self-holding shut-off valve reset detector device
Inventor: SHIRASAWA TADANORI
IPC: F16K31/06
Filed: 1988-11-25
Abstract: PURPOSE:To make current consumption zero at a reset detector portion during shutting- off by taking out reset signal from the output terminal of a constant-voltage detector element connecting counter electromotive force to be produced by reset operation to a ground terminal and its power voltage terminal to the ground. CONSTITUTION:When shut-off information is given through a communication interface 13 from a remote area, a micro-computer 1a sets an output port O11 at LOW to energize a drive circuit 4 for operating a shut-off valve 3 to shut off a gas passage. At the same time, the micro-computer 1a sets a port O12 at LOW to energize an element protection drive circuit 15 for protecting a constant-voltage detector element 14. When the shut-off valve 3 is reset, counter electromotive force is produced at A point to set the output terminal of the constant-voltage detector element 14 at LOW. This LOW condition continues until a potential difference between a power voltage terminal 14a and a ground terminal 14b becomes the minimum operation voltage for the constant-voltage detector element 14. The micro-computer 1a detects this LOW condition, judges that the shut-off valve 3 is reset and informs to a remote area through the communication interface 13. Thus current consumption at the reset detector portion can be reduced to zero during shutting-off.
Patent JP-H04171734-A (JP)
Title: Semiconductor device
Inventor: SAKAMOTO SHINICHI
IPC: H01L21/822
Filed: 1990-11-02
Abstract: PURPOSE:To reduce damage of chips and to improve electrical characteristics by a method wherein a plurality of unit transistor groups arranged on a straight line are counterposed in parallel by two arrays or more and isolated from each other to shorten the width of a gate electrode. CONSTITUTION:A plurality of unit transistor groups 35A, 35B are counterposed in parallel on the active region of a semiconductor substrate 30 and isolated from each other. After drain electrodes 22a, 22b are arranged and connected at equal intervals, and the drain electrode 22a is connected to a common drain electrode pad 32. Further, source electrodes 23a, 23b are likewise arranged and connected, and the source electrode 23b is connected to a common source electrode pad 33. Next, gate electrode 24a, 24b are connected in common to an air bridge 26 and further through another air bridge 27 to a gate electrode pad 34. Hereupon, input signal is supplied from the gate electrode pad 34 through the air bridges 27, 26 to the transistor groups 35A, 35B, and amplification signal is extracted from the drain electrode pad 32.
Patent JP-H06148949-A (JP)
Title: Two component developer for electrophotography
Inventor: KOIZUMI KATSUO
IPC: G03G9/087
Filed: 1992-11-09
Abstract: PURPOSE:To obtain a developer having long life capable of maintaining initial high quality picture in repeatingly copying over a long period by containing a carrier made by coating the core material with a chlorinated vinyl chloride resin, a styrene-acryl copolymer resin and a coloring agent. CONSTITUTION:The carrier made by coating a part of the core material with a resin containing the chlorinated vinyl chloride resin, the styrene-acryl copolymer resin and the coloring agent are contained. The chlorinated vinyl chloride resin is obtained by further chlorinating a vinyl chloride polymer. If only a resin contains the chlorinated vinyl chloride resin, a composition made by blending another resin with the resin can be also used as the coating agent for the carrier core material. The styrene-acryl copolymer synthesized from a styrene based monomer and a (metha)acrylic ester monomer is used as the binder resin of the toner. An optional adequate pigment or dye is used as the coloring agent.
Patent JP-H06148470-A (JP)
Title: Optical passive module
Inventor: HAYATA HIRONORI
IPC: H01S3/10
Filed: 1992-11-10
Abstract: PURPOSE:To obtain an optical passive module used in an optical fiber amplifier, and to realize an optical coupler where an optical branching function using a mirror and an optical monitoring function are added and integrated besides to a polarized light synthesizing function, a wavelength synthesizing function and an optical isolator function. CONSTITUTION:A double refraction crystal 23 being a polarized light synthesizing part synthesizes two inputted linearly polarized light beams whose planes of polarization are orthogonally crossed with each other on the same optical axis and emits it. A wavelength filter 27 transmits the synthesized light beam and reflects inputted signal light, a mirror 31 reflects most of the signal light reflected by the filter 27 and transmits a part of the signal light, and the optical isolator 32 allows the signal light reflected by the mirror 31 to pass through and outputs it. A part of signal transmitted through the mirror 31 is detected by a photodetector 35. By such constitution, the optical passive module where input/output fibers are arranged in the same direction and which is small in size and excellent in packaging is obtained.
Patent JP-H11128460-A (JP)
Title: Game machine manufacturing nailing device
Inventor: KUWABARA FUJIO
IPC: A63F7/02
Filed: 1997-10-30
Abstract: PROBLEM TO BE SOLVED: To open and close a nail holder arm to prevent the occurrence of a nailing failure. SOLUTION: A nail holder arm firmly holds the shaft part 37a of a nail 37 in the nipping state by a close side electromagnet 8 from nail feed to nailing, so that the nail 37 can be driven to a game board without buckling it. When the nail holder arm is retreated from the nailing to the nail receiving position side, it is opened in the non-nipping state of the shaft part 37a of the nail 37 by an open side electromagnet 7, and the opening of the nail holder arm is fixed to a prescribed width, so that the nail holder arm is never collided to an adjacent existing nail, and the curving of the existing nail can also be prevented.
Patent JP-H03159403-A (JP)
Title: Method for generating circular polarized wave bidirectional beam and antenna using the beam
Inventor: NAKANO HISAMATSU
IPC: H01Q13/08
Filed: 1989-11-17
Abstract: PURPOSE:To generate a circular polarized wave bidirectional beam having a maximum electric field in a direction shifted to an antenna surface-side from a vertical direction by making the form of a current flowing along a closed circuitlike conductor having approximately nlambdag (lambdag is the propagating wavelength of the current flowing along the closed circuit-like conductor) into a progress waveform by means of perturbation elements. CONSTITUTION:A dielectric layer 3 is laminated on a ground board 1 and a closed circuit like conductor pattern 2 is formed in a circle on an antenna surface A being the upper surface of the dielectric layer 3 which is parallel to the ground board 1. The peripheral length (closed circuit length) C of the conductor pattern 2 is set to be C nlambdag (lambdag is the propagating length of the current flowing along the circular closed circuit-like conductor pattern 2, and (n) is n>=2). Two perturbation elements 7a and 7b generating the current form of a pregress wave distribution on the conductor pattern 2 are provided at a part of the periphery direction of the conductor pattern 2 towards an inner direction. The total sum of an electric field which a current vector generates in the vertical direction with respect to the antenna surface A is set to '0' and the circular polarized wave bidirectional beam is generated in the direction shifted to the antenna surface-side from the vertical direction by setting the form of the current flowing along the circular closed circuit-like conductor pattern 2 having the periphery length C of about nlambdag by the perturbation elements 7a and 7b.
Patent JP-H08157290-A (JP)
Title: Aliphatic polyester coated granular fertilizer
Inventor: ONO YUICHI
IPC: C05G3/00
Filed: 1994-12-02
Abstract: PURPOSE: To obtain an aliphatic polyester coated granular fertilizer controlled in the elution of fertilizer and capable of decomposing and eliminating the coating film by the biodegradation after the elution of fertilizer. CONSTITUTION: This aliphatic polyester coated granular fertilizer has the coated layer containing an aliphatic polyester expressed by a formula, -(OR<1> OCOR<2> CO)n - ((n) represents the degree of polymerization necessary for the polyester resin having the number average molecular weight of >15,000 to <=1,000,000, R<1> represents a >=2C to <=20C alkylene group and R<2> represents a >=2C to <=22C alkylene group).
Patent JP-H06144514-A (JP)
Title: Carrier device for carrying-in and-out
Inventor: OKAMURA TAKASHI
IPC: B66F9/07
Filed: 1992-11-10
Abstract: PURPOSE:To make the device counter weight-less or to reduce the weight of a counter weight by mounting a lifting carriage 7 on a car which can travel along a rack in a carrier device provided with a load transferring device (for example, a running fork) on the lifting carriage 7. CONSTITUTION:This carrier device is provided with both wires 36a, 36b, 38a, 38b connected to a lifting carriage 7, and spring balancers 34a-35b which winds up the respective wires in a direction of raising the carriage 7.
Patent JP-2001113626-A (JP)
Title: Decorative member and production method therefor
Inventor: SUZUKI YASUYUKI
IPC: B05D7/04
Filed: 1999-10-21
Abstract: PROBLEM TO BE SOLVED: To bond a pattern sheet to a base material strongly and equally. SOLUTION: The surface of a base material 11 made of aluminum or an aluminum alloy is roughened and an alumite layer 42 is further formed on the roughened surface of the base material in an unsealed state and the thermoplastic resin layer 13 of a pattern sheet is welded to the alumite layer 42.
Patent JP-H01143428-A (JP)
Title: Signal power detecting circuit
Inventor: OGURI SEIJIRO
IPC: H04B17/00
Filed: 1987-11-30
Abstract: PURPOSE:To detect a signal power with less error by devising a logic section applying integration so that a center frequency of a band pass filter is moved to a majority position of an occupied band width of a modulation signal and the level of an unmeasured part is estimated by the interpolation method based on each signal level of the majority position. CONSTITUTION:With plural input signal different from the carrier frequency and the occupied band width inputted to an input terminal 1, a frequency converter 2 mixes a local oscillation signal sent from a local oscillator 7 and the input signal and applies frequency conversion to the result into an intermediate frequency signal. The intermediate frequency signals L, M, N for low frequency, center frequency and high frequency components respectively are outputted from the frequency converter 2, and each level is detected by a band pass filter 3 and a detector 4, the signal is converted into a digital data by an A/D converter 5 and the result is supplied to a logic section 6. The level deviation of the unmeasured band is estimated from the level deviation of three points to be obtained by means of the linear or the 2nd order curvature correction or the like and the result is multiplied with the band to detect a signal power and the result is outputted to an output terminal 8.
Patent JP-H05105443-A (JP)
Title: Precursory solution for manufacturing oxide superconductor and manufacture of oxide superconductor
Inventor: MASUDA YOSHIO
IPC: H01L39/24
Filed: 1991-10-18
Abstract: PURPOSE:To provide a precursory soln. for manufacturing an oxide superconductor capable of obtaining the formed body of a good superconductor and capable of increasing the metallic concn. in the sol. as well as good in spinning properties and free from defects such as cracking and the method by which the formed body is obtainable by using the above precursory soln. CONSTITUTION:One of this invention is to provide a precursory soln. in which, by calcining an oxide mixed body prepd. so as to regulate its compositional ratio to a prescribed one to prepare powder, thereafter adding it to a solvent contg. naphthenic acid and warming the above soln. to 60 to 80 deg.C, the melting of the powder is promoted as well as it is concentrated to desired concn. Moreover, manufacturing is executed in such a manner that the precursory soln. is gelled, is dried and calcined and is thereafter baked at 600 to 1000 deg.C, by which the desired oxide superconductor can be obtd.
Patent JP-H01143873-A (JP)
Title: Pteridine derivative
Inventor: KURONO MASATSUNE
IPC: C07D475/04
Filed: 1987-11-30
Abstract: NEW MATERIAL:A compound of formula II (R1 is H, alkyl, aralkyl, aryl; R2 is alkyl, mono - polyhydroxyalkyl, R10, R11 are H, acyl; n is 5 or less integer; HX is acid). EXAMPLE:2-Amino-4-hydroxy-6-(1'-hydroxy-2-oxopropyl)-dihydropteridine. USE:It is used as a synthetic intermediate of BH4: 5,6,7,8-tetrahydro-L-erythro- biopterin, or its analogues, a coenzyme of hydroxylase of aromatic amino acids. It can be simply and efficiently synthesized at inexpensive costs. PREPARATION:As shown in the reaction equations, the epoxide group in the compound of formula IX (R3, R4 are alkyl, aralkyl, aryl) is cleaved with another compound of formula VIII to give the compound of formula I. Then, the acetal moiety is hydrolyzed, and simultaneously the amino group moiety is ring-closed to give a compound of formula III. Then, the pteridine ring of the compound is oxidized to give the compound of formula II (R10 and R11 are H).
Patent JP-H06143234-A (JP)
Title: Form for concrete side ditch
Inventor: YAMADA HIROSHI
IPC: E02B11/00
Filed: 1992-11-10
Abstract: PURPOSE:To automate opening/closing of a form by providing a threaded rod for opening/closing front and rear end frames of an outer frame for molding a U-shaped side ditch and a threaded rod for opening/closing both side frames, and transmitting a rotation of the rod for opening/closing the end to the rod for opening/closing the side to simultaneously open/close the end frame and the side frame. CONSTITUTION:Nuts are provided at front and rear end frames slidably provided at a base 1, and male left-hand and right-hand threads formed at both longitudinal ends of a threaded rod 6 for opening/closing end frames are engaged. Threaded rods 18 for opening/ closing the side frames at male left-hand and right-hand threads 18a, 18b to be engaged with nuts 16, 17 clamped at the side frames 4, 5 are supported in an inner frame via a universal joint 19, and intersections of the rods 6, 18 are connected with threaded gears 20, 21. A partition wall in the form when a plurality of side ditches are molded is so formed as to mount hinges 13, 14 at lower parts of partition wall plates 11, 12 to be tiltable inside, to connect upper parts of the plates 11, 12 with shrinkable sealing material 15 and to tilt by the rotation of the rod 6.
Patent JP-H10141458-A (JP)
Title: Continuously variable transmission controller
Inventor: TAKAGI AKIRA
IPC: F16H61/12
Filed: 1996-11-12
Abstract: PROBLEM TO BE SOLVED: To provide a continuously variable transmission controller which ensures the minimum running function by a simple and low-cost configuration. SOLUTION: An oil passage 56 branched from a control output port oil passage 53 of a solenoid valve 12 is led to a fail-safe valve 13 to control pressure in an oil passage 69 in accordance with pressure of an oil passage 58 branched from an oil passage 57. Moreover, pressure of the oil passage 57 is introduced into a primary pressure control valve 19 to control pressure of an oil passage 68 by pressure of an oil passage 80 and the oil passage 57. When output pressure of the solenoid valve 12 drops below a specified value and a failure occurs, the fail-safe valve 13 is changed over to the right position so that pressure of an oil passage 55 and an oil passage 51 which detour the solenoid valves 12 and 11 is communicated with the oil passage 57 and the oil passage 80.  As a result, it is possible to transmit large torque because primary pressure and secondary pressure are controlled in such a manner that they become the maximum values. Consequently, it is possible to ensure tensile force of a belt which hardly obstructs actual running at the time of fail and ensure the minimum running function.
Patent JP-2001117966-A (JP)
Title: Designing method for semiconductor integrated circuit device
Inventor: TAKENAKA YASUSHI
IPC: H01L21/82
Filed: 1999-10-22
Abstract: PROBLEM TO BE SOLVED: To cancel the violation of a maximum delay request in a semiconductor integrated circuit without changing a logic circuit. SOLUTION: The delay time of an inter-register route in the semiconductor integrated circuit device is calculated, it is judged whether this delay time violates the maximum delay request of that route or not and it is judged whether the violating delay time of the route between first and second registers is shorter than (maximum delay request + time from a clock edge for second register to fetch a signal to the next clock edge of a negative phase) or not.  When these conditions are satisfied, the delay time of the route to the next register with the second register as a start point is calculated, it is judged whether the longest delay time is shorter than time from a negative phase clock edge next to the clock edge for the second register to fetch the signal to the next positive phase clock edge or not and when this condition is satisfied, an inverted element is inserted to the clock line of the second register.
Patent JP-H04172167-A (JP)
Title: Oilless metal, and method and device for manufacturing the same
Inventor: KITAMURA KATSUAKI
IPC: C22C9/04
Filed: 1990-11-06
Abstract: PURPOSE:To contrive adaptability for the production for the small scale many kinds products by casting bearing members for which high strength brass is injected into an annular space having the specific structure by aligning both movable and fixed molds in the manufacture of cylindrical type oilless metal. CONSTITUTION:The bearing members 9 formed to spherical shape by blending the powder metallurgy refining powder base material of molybdenum and carbon as the auxiliary material, are inserted into the embedding space 10 formed with the mating of the movable mold 4 and the fixed mold 2, and by pouring the molten high strength brass into the annular space 12 constituted between the above-mentioned members and inner curving face 6 for machining, interposing a core 11, the bearing members 9 are cast to obtain the cylindrical type oilless metal 1. By this method, the oilless metal having the most suitable for the production of the small scale many kinds products such as cylindrical type, roller type, seat metal type, can be manufactured.
Patent JP-S63152056-A (JP)
Title: Disk clamp device
Inventor: OKAYA MASANAO
IPC: G11B17/028
Filed: 1986-12-17
Abstract: PURPOSE:To clamp a disk stably and surely even at the reproducing time of a composite disk by separating the stabilizer for preventing a face vibration from a disk face and bearing it against the pressing side of a clamper. CONSTITUTION:In case of the disk to be reproduced being a composite disk a control signal is transmitted for a clamper driving circuit 53 from a system controller 21 and an electromagnetic coil 52 is driven, so a stabilizer 50 is separated from the disk face by attracting the stabilizer 50 by the attraction force caused in the space with a magnet 51. And by adsorbing the stabilizer 50 by the electromagnetic coil 52 the stabilizer 50 is borne by a pressing member 44 via a holding member 45 and ball 46. As a result the pressure of the pressing member 44 is increased by the part equiv. to the weight of the stabilizer 50. The overload of the stabilizer 50 is thus prevented and a sufficient clamp force may be given.
Patent JP-H06129197-A (JP)
Title: In-shaft vertical conveying device for shield construction material and equipment
Inventor: IMAGAWA TSUTOMU
IPC: E21F13/00
Filed: 1992-10-13
Abstract: PURPOSE:To make it possible to carry construction materials from the ground to an underground pit by way of a shaft with safety and efficiency in an attempt to save manpower and energy. CONSTITUTION:Conveying equipment 89 is installed along a guide frame 87 installed in a shaft B in such a fashion that it may rise. The conveying equipment 89 is provided with a rail 91 on which a loading truck 83 and a track type-unmanned truck is capable of running. A clamping device 93 is also installed to the equipment 89. This clamping device comprises a claw 95 which clamps segments 3 and a lift 97 which lifts up the claw 95. The conveying equipment is lifted up by means of a lift which 99. When the loading truck runs, transferring from a rail from 85 to a rail 91 with the conveying equipment standing in a state of H1, and the clamping 93 arrives downward, the claw 95 falls down to clamp the segments 3 and then rises gain. After the empty loading truck runs out of the equipment, the lift which is driven so that the conveying equipment falls to the position of H2. Then, the track type unmanned truck 103 rides into conveying equipment 89 and the claw 95 falls so that the segments 3 may be loaded on the track type inmanned truck.